android - 无法动态设置可绘制的textview

Question

我正在尝试动态创建 TextView 。我想将 drawable 设置为 textview`

TextView tab = new TextView(getContext());
        tab.setText(title);
        tab.setSingleLine();
        tab.setGravity(Gravity.CENTER);
        int padding = getResources().getDimensionPixelOffset(R.dimen.offset);
        tab.setPadding(0,0,padding,0);
        if(typeface!= null){
            tab.setTypeface(typeface);
        }
        tab.setCompoundDrawables(getResources().getDrawable(R.drawable.ic_arrow_back_white_24dp),null,null,null);

`但我无法实现它。你们谁能帮帮我。

Answer 1

使用 setCompoundDrawablesWithIntrinsicBounds

Sets the Drawables (if any) to appear to the left of, above, to the right of, and below the text. Use null if you do not want a Drawable there. The Drawables' bounds will be set to their intrinsic bounds.

setCompoundDrawablesWithIntrinsicBounds(getResources().getDrawable(R.drawable.ic_arrow_back_white_24dp),null,null,null);

或

setCompoundDrawablesWithIntrinsicBounds(getResources().getDrawable(R.drawable.ic_arrow_back_white_24dp),0,0,0);